Highly Optimized O-band Si Ring Modulators for Low-Power Hybrid CMOS-SiPho Transceivers

Abstract

We present O-band Si ring modulators with up to 58pm/V electro-optic and 610pm/mW thermo-optic modulation efficiencies and >24GHz modulation bandwidth, enabling a hybrid CMOS-SiPho transceiver with error-free operation at 40Gbps NRZ with <4pJ/bit link energy.